Well, Marrakesh is also known as the Red City, due to the coloured pigment in its walls. The Medina in Chefchaouen, a mountain village in the north of the country, is painted a rich blue throughout. And Fez looks like a mass of powder-white buildings when viewed from the Borj Nord above.

But I’d say orange is the one that sticks in my mind: the colour of the kasbahs and the ksars of the Deep South, and of the Sahara stretching beyond.